/* Prism — shared styles */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --indigo: #6366F1;
  --purple: #AF52DE;
  --pink: #FF375F;
  --orange: #FF9F0A;
  --blue: #0A84FF;
  --bg: #050507;
  --bg-soft: #0c0c10;
  --card: rgba(255, 255, 255, 0.045);
  --card-hover: rgba(255, 255, 255, 0.07);
  --text: rgba(255, 255, 255, 0.95);
  --text-2: rgba(255, 255, 255, 0.66);
  --text-3: rgba(255, 255, 255, 0.42);
  --border: rgba(255, 255, 255, 0.09);
  --grad: linear-gradient(120deg, var(--indigo), var(--purple) 45%, var(--pink) 80%, var(--orange));
  --radius: 22px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: -40% -20% auto -20%;
  height: 90vh;
  background:
    radial-gradient(40% 50% at 20% 20%, rgba(99, 102, 241, 0.18), transparent 70%),
    radial-gradient(40% 50% at 80% 10%, rgba(255, 55, 95, 0.12), transparent 70%),
    radial-gradient(50% 50% at 60% 60%, rgba(175, 82, 222, 0.14), transparent 70%);
  filter: blur(20px);
  z-index: -1;
  pointer-events: none;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.wrap-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(5, 5, 7, 0.6);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
}

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}

.brand span {
  background: var(--grad);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 8s ease infinite;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color .2s;
}

.nav-links a:hover {
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  color: #fff;
  background: var(--grad);
  background-size: 200% 200%;
  animation: shimmer 8s ease infinite;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.32);
  transition: transform .2s, box-shadow .2s;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(99, 102, 241, 0.42);
}

/* Keep buttons white + un-underlined even inside prose/cta-box (where links are blue) */
a.btn,
.prose a.btn,
.cta-box a.btn {
  color: #fff;
  text-decoration: none;
}

.btn svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

@media (max-width: 640px) {
  .nav-links .ghost { display: none; }
}

/* Language switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 100px;
  border: 1px solid var(--border, rgba(255,255,255,0.1));
  background: rgba(255,255,255,0.03);
}
.lang-switch a {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--text-2);
  padding: 4px 9px;
  border-radius: 100px;
  line-height: 1;
  transition: color .2s, background .2s;
}
.lang-switch a:hover { color: var(--text); }
.lang-switch a.active {
  color: #fff;
  background: var(--grad);
}

/* Hero */
header.hero {
  text-align: center;
  padding: 96px 0 72px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--card);
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 28px;
  animation: rise .7s ease both;
}

.pill .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34C759;
  box-shadow: 0 0 10px #34C759;
}

h1.title {
  font-size: clamp(40px, 7vw, 68px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.04;
  margin-bottom: 22px;
  animation: rise .7s ease .05s both;
}

h1.title b {
  background: var(--grad);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 8s ease infinite;
  font-weight: 800;
}

.lede {
  max-width: 580px;
  margin: 0 auto 36px;
  font-size: clamp(17px, 2.4vw, 20px);
  color: var(--text-2);
  animation: rise .7s ease .1s both;
}

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  animation: rise .7s ease .15s both;
}

.btn-lg {
  padding: 15px 26px;
  font-size: 16px;
}

.btn-ghost {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: none;
  animation: none;
}

.btn-ghost:hover {
  background: var(--card-hover);
  box-shadow: none;
}

.hero-note {
  margin-top: 22px;
  font-size: 13px;
  color: var(--text-3);
  animation: rise .7s ease .2s both;
}

/* Sections */
section {
  padding: 64px 0;
}

.eyebrow {
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--indigo);
  margin-bottom: 14px;
}

h2.sec {
  text-align: center;
  font-size: clamp(28px, 4.5vw, 40px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}

.sec-sub {
  text-align: center;
  color: var(--text-2);
  max-width: 540px;
  margin: 0 auto 48px;
  font-size: 17px;
}

/* Feature grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

@media (max-width: 860px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .grid { grid-template-columns: 1fr; } }

.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .25s, background .25s, border-color .25s;
}

.feature:hover {
  transform: translateY(-5px);
  background: var(--card-hover);
  border-color: rgba(99, 102, 241, 0.4);
}

.feature .ico {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 22px;
  margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.22), rgba(175, 82, 222, 0.18));
  border: 1px solid var(--border);
}

.feature h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature p {
  color: var(--text-2);
  font-size: 15px;
}

/* Band */
.band {
  text-align: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(175, 82, 222, 0.1));
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 56px 32px;
}

.band .big {
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.band p {
  color: var(--text-2);
  max-width: 560px;
  margin: 0 auto;
  font-size: 17px;
}

/* FAQ */
.faq {
  max-width: 760px;
  margin: 0 auto;
}

.faq details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 4px 22px;
  margin-bottom: 12px;
  transition: background .2s;
}

.faq details[open] { background: var(--card-hover); }

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-weight: 600;
  font-size: 17px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: '+';
  color: var(--indigo);
  font-size: 24px;
  font-weight: 400;
  transition: transform .2s;
}

.faq details[open] summary::after { transform: rotate(45deg); }

.faq details p {
  color: var(--text-2);
  font-size: 16px;
  padding: 0 0 20px;
  margin: 0;
}

/* Policy / prose */
.policy {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
}

.prose-card {
  max-width: 820px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px;
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
}

.prose h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 36px 0 16px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.prose h2:first-child { margin-top: 0; }

.prose h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 26px 0 10px;
  color: var(--text);
}

.prose p {
  color: var(--text-2);
  margin-bottom: 14px;
  font-size: 17px;
}

.prose ul, .prose ol {
  margin: 0 0 16px 22px;
}

.prose li {
  color: var(--text-2);
  margin-bottom: 10px;
  font-size: 17px;
}

.prose strong { color: var(--text); font-weight: 600; }

.prose a { color: var(--blue); text-decoration: underline; word-break: break-word; }

.highlight {
  background: linear-gradient(135deg, rgba(255, 159, 10, 0.1), rgba(175, 82, 222, 0.1));
  border-left: 3px solid var(--purple);
  padding: 18px 22px;
  border-radius: 12px;
  margin: 24px 0;
}

.highlight p { margin: 0; color: var(--text); }

.updated { color: var(--text-3); font-size: 14px; margin-top: 24px; }

/* Blog */
.post-meta {
  color: var(--text-3);
  font-size: 14px;
  margin-bottom: 8px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

@media (max-width: 700px) { .blog-grid { grid-template-columns: 1fr; } }

.post-card {
  display: block;
  text-decoration: none;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .25s, border-color .25s, background .25s;
}

.post-card:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.4);
  background: var(--card-hover);
}

.post-card h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 8px 0 10px;
  line-height: 1.25;
}

.post-card p { color: var(--text-2); font-size: 15px; }

.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--indigo);
}

.article-head {
  text-align: center;
  padding: 80px 0 32px;
}

.article-head h1 {
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  max-width: 760px;
  margin: 14px auto 0;
}

.cta-box {
  text-align: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.14), rgba(175, 82, 222, 0.12));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 40px 28px;
  margin: 44px 0;
}

.cta-box h3 { font-size: 22px; font-weight: 800; margin-bottom: 10px; }
.cta-box p { color: var(--text-2); margin-bottom: 22px; }

.breadcrumb {
  font-size: 14px;
  color: var(--text-3);
  margin-bottom: 8px;
}

.breadcrumb a { color: var(--text-2); text-decoration: none; }
.breadcrumb a:hover { color: var(--text); }

/* Author box (E-E-A-T) */
.author-box {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin: 44px 0 4px;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.author-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  flex: none;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 15px;
  color: #fff;
  background: var(--grad);
}

.author-name { font-weight: 700; color: var(--text); margin: 0 0 4px; font-size: 15px; }
.author-bio { color: var(--text-2); font-size: 14px; margin: 0; line-height: 1.5; }
.author-bio a { color: var(--blue); text-decoration: none; }
.author-bio a:hover { text-decoration: underline; }

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 44px 0;
  text-align: center;
  color: var(--text-3);
  font-size: 14px;
}

.foot-links {
  display: flex;
  gap: 22px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.foot-links a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 15px;
  transition: color .2s;
}

.foot-links a:hover { color: var(--text); }

@media (max-width: 640px) {
  .prose-card { padding: 30px 22px; }
  header.hero { padding: 64px 0 48px; }
  .article-head { padding: 56px 0 24px; }
}

/* Mobile polish */
@media (max-width: 560px) {
  .wrap, .wrap-narrow { padding: 0 18px; }
  section { padding: 44px 0; }
  .nav-inner { height: 58px; }
  .brand { font-size: 17px; }
  .btn { padding: 10px 16px; font-size: 14px; }

  /* Stack hero CTAs full-width for easy tapping */
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { justify-content: center; width: 100%; }

  .feature { padding: 22px; }
  .band { padding: 40px 22px; }
  .cta-box { padding: 32px 20px; }
  .cta-box .btn { width: 100%; justify-content: center; }
  .faq summary { font-size: 16px; }
  .prose p, .prose li { font-size: 16px; }

  /* Avoid forced awkward line breaks from <br> on tiny screens */
  h1.title br { display: none; }
}

/* Comfortable tap targets everywhere */
.nav-links a, .foot-links a, .faq summary { min-height: 40px; display: inline-flex; align-items: center; }
.faq summary { display: flex; }